HAMIDAH, L. N. .; URIFATUS EKA KURNIA SARI; LILY OKTAVIA. Pengolahan Air Sungai Menggunakan Slow Sand Filter Sistem Downflow dalam Menurunkan COD dan BOD . Journal of Research and Technology, [S. l.], v. 8, n. 1, p. 133–140, 2022. DOI: 10.55732/jrt.v8i1.630. Disponível em: https://journal.unusida.ac.id/index.php/jrt/article/view/630. Acesso em: 11 apr. 2025.